diff --git a/src/Gui/OverlayManager.cpp b/src/Gui/OverlayManager.cpp
index 91fb67ada3..62d818c743 100644
--- a/src/Gui/OverlayManager.cpp
+++ b/src/Gui/OverlayManager.cpp
@@ -1787,8 +1787,8 @@ bool OverlayManager::eventFilter(QObject *o, QEvent *ev)
             if(!isTreeViewDragging())
                 d->interceptEvent(d->_trackingWidget, ev);
             if(isTreeViewDragging()
-                    || ev->type() == QEvent::MouseButtonRelease
-                    && QApplication::mouseButtons() == Qt::NoButton)
+                    || (ev->type() == QEvent::MouseButtonRelease
+                    && QApplication::mouseButtons() == Qt::NoButton))
             {
                 d->_trackingWidget = nullptr;
                 if (d->_trackingOverlay == grabber